The authenticity of host 'github.com (52.74.223.119)' can't be established.

The authenticity of host ‘github.com (52.74.223.119)’ can’t be established.git 在初始化git以后（git init），同时在github创建好仓库以后，本地也新增了ssh kye（ssh-keygen -t rsa -C ‘mail address’），同时也在本地新增了远程仓库（git remote add orig

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